A folding lock assembly for use in a frame for a portable child enclosure that includes a body housing first and second hinges for connecting a pair of equal-length side frame members. The hinges are limited in the degree of pivotal movement permitted between a locked position in which the frame members are linearly aligned and a folded position in which the frame members are substantially parallel. The first hinge permits angular rotation less than 90 degrees while the second hinge permits angular rotation greater than 90 degrees. The differences in the range of hinge rotation offset the distal ends of the frame when the connected members are folded to eliminate a pinch point between frame end members.

The present disclosure provides an articulation joint that can include a plurality of articulation links, wherein each articulation link can include an elongate body having a proximal end, a distal end, an outer surface, and a first lumen extending from the proximal end to the distal end. Each articulation link can further include a plurality of arms extending radially outward from the elongate body, wherein each arm includes an inner end attached to the outer surface of the elongate body and a second lumen extending from a proximal side of the arm to a distal side of the arm. The articulation joint can also include a bending member positioned within the first lumen of the elongate body and a control member positioned within a plurality of second lumens, wherein each of the plurality of second lumens includes a common longitudinal axis.

The current invention discloses several methodologies that mitigate shock loading and propensity to resonance in agricultural spray boom structures. These include a near planar linkage for decoupling the boom assembly from the vehicle. This serves to permit further aspects of the invention to: Use the combined mass of the booms and center section as the tuned mass of a tuned mass damper: Act as an enabling part of a boom compliant suspension system to mitigate shock loadings otherwise imposed on the boom system, and: Act as an enabling part of an active boom height and roll control systems to permit the accurate navigation of the boom over undulating terrain. Further aspects include the incorporation of tuned mass dampers in the boom structure and components; and the use of the mass and operation of the boom outboard breakaway sections as tuned mass dampers.

A rotary joint constant velocity stabilizer for connecting a first rotatable body and a second rotatable body, the first and second rotatable bodies being rotatable about a generally common axis of rotation and rotatable at substantially similar angular velocities. The rotary joint constant velocity stabilizer has a first base, a second base, and a shaft. The shaft is connected to first base such that the shaft is pivotable relative to the first base about a first axis extending from a first side to a second side of the first base. The shaft is connected to the second base such that the shaft is pivotable about a second axis extending from a first side to a second side of the second base, the shaft being slidable relative to the second base along a third axis normal to the first axis and the second axis, and rotatable relative to the second base about the third axis while preventing relative rotational motion between the first base and the second base.

An articulating portion for an elongate medical device is disclosed. The articulating portion may include a plurality of segments movable relative to one another, and a plurality of hinges disposed between adjacent segments. The segments can be configured to bend at the hinges upon manipulation of a control member of the device. The segments and the hinges can also be a single continuous piece of material.